Malicious PDF — malware analysis report

Static analysis result for SHA-256 3137abc63568659e…

MALICIOUS

PDF

16.5 KB Created: 2020-03-18 21:46:48 +00:00 Authoring application: mPDF 5.7
MD5: 39eedce4bf20d963dc4050efffb925cd SHA-1: 6664a9e92129772703e4c6ee4e9b563a82792ef1 SHA-256: 3137abc63568659ee379186de99f7108d7a5f43c4f0637b320236a4ac9514631
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier as malicious. It contains a large number of embedded URLs, forming a link farm, which is a common technique for distributing malware or leading users to phishing sites. The primary attack pattern involves luring users through these links, likely disguised as legitimate content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9811

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://calistazz.myhome.cx/2869866862864864/Miss-O-Dell-My-Hard-Days-and-Long-Nights-with-the-Beatles-the-Stones-Bob-Dylan-Eric-Clapton-and-the-Women-They-Loved-by-Chris-O-39-Dell.pdf
    • http://calistazz.myhome.cx/4864860869868860/Miss-O-Dell-My-Hard-Days-and-Long-Nights-with-The-Beatles-The-Stones-Bob-Dylan-Eric-Clapton-and-the-Women-They-Loved-by-Chris-O-39-Dell.pdf
    • http://calistazz.myhome.cx/4863866865866869/Blood-Too-Bright-Floyd-Dell-Remembers-Edna-St-Vincent-Millay-by-Jerri-Dell.pdf
    • http://calistazz.myhome.cx/1861862862866861869/Utan-n-d-Maggie-O-Dell-8-ga-f-r-ga-Maggie-O-Dell-8-5-by-Alex-Kava.pdf
    • http://calistazz.myhome.cx/8863866861867/Clapton-The-Autobiography-by-Eric-Clapton.pdf
    • http://calistazz.myhome.cx/4865861868867865/Clapton-The-Autobiography-by-Eric-Clapton.pdf
    • http://calistazz.myhome.cx/1869868864860866/Smile-for-Me-by-T-J-Dell.pdf
    • http://calistazz.myhome.cx/4869862861861/Three-Minutes-More-by-Edward-R-O-39-Dell.pdf
    • http://calistazz.myhome.cx/1868862869861866/The-Way-of-an-Eagle-by-Ethel-M-Dell.pdf
    • http://calistazz.myhome.cx/4868864865869867/The-Ace-of-Spades-by-Dell-Shannon.pdf
    • http://calistazz.myhome.cx/1862860869864867/Saving-Face-by-T-J-Dell.pdf
    • http://calistazz.myhome.cx/7866869863866/Alexandra-by-Scott-O-39-Dell.pdf
    • http://calistazz.myhome.cx/4868862861864863/The-Captive-by-Scott-O-39-Dell.pdf
    • http://calistazz.myhome.cx/4862868865869862/Shady-by-Dell-Banks.pdf
    • http://calistazz.myhome.cx/4866867862862863/All-About-Horses-by-Catherine-Dell.pdf
    • http://calistazz.myhome.cx/3868869860865862/Recaptured-Dreams-by-Justine-Dell.pdf
    • http://calistazz.myhome.cx/8866863861866865/The-Farmer-in-the-Dell-by-Alexandra-Wallner.pdf
    • http://calistazz.myhome.cx/1861866867864868868/L-Oro-dell-Eden-by-Davide-C-Crimi.pdf
    • http://calistazz.myhome.cx/4868862861862869/The-Amethyst-Ring-by-Scott-O-39-Dell.pdf
    • http://calistazz.myhome.cx/4864861861865861/Crossroads-The-Life-and-Music-of-Eric-Clapton-by-Michael-Schumacher.pdf

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